diff --git a/docs/TODOLIST.md b/docs/TODOLIST.md
index b25f300..3f82a69 100644
--- a/docs/TODOLIST.md
+++ b/docs/TODOLIST.md
@@ -1,6 +1,6 @@
 ## Todo list
 * Browser: add cookie support
-* Browser: support pop window, such as emacs-china.org
+* Browser: if popup window emit exit signal, kill buffer
 * Browser: add proxy support
 * Browser: implement js plugin like vimium
 * Browser: study more code from https://github.com/LavaPower/Browthon-Old/blob/c25d5721b40e95131a3c521566a18467f13ecbf0/files/Browthon_elements.py